168106677772071 has 16 divisors (see below), whose sum is σ = 229018280211936. Its totient is φ = 109645077374976.

The previous prime is 168106677772067. The next prime is 168106677772073. The reversal of 168106677772071 is 170277776601861.

It is not a de Polignac number, because 168106677772071 - 2² = 168106677772067 is a prime.

It is a super-2 number, since 2×168106677772071² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 168106677771993 and 168106677772011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168106677772073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1497500110 + ... + 1497612363.

It is an arithmetic number, because the mean of its divisors is an integer number (14313642513246).

Almost surely, 2^{168106677772071} is an apocalyptic number.

168106677772071 is a deficient number, since it is larger than the sum of its proper divisors (60911602439865).

168106677772071 is a wasteful number, since it uses less digits than its factorization.

168106677772071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995112882.

The product of its (nonzero) digits is 58084992, while the sum is 66.

The spelling of 168106677772071 in words is "one hundred sixty-eight trillion, one hundred six billion, six hundred seventy-seven million, seven hundred seventy-two thousand, seventy-one".